Honeycomb structure

Abstract

A honeycomb structure includes a bonded honeycomb segment article in which a plurality of honeycomb segments are integrally bonded on mutual bonding surfaces thereof via bonding material layers; and an outer peripheral coating layer which covers an outer peripheral surface of the bonded honeycomb segment article. The honeycomb structure has a structure in which a plurality of cells constituting fluid channels are arranged in parallel with one another in a central axis direction. Solid cells are beforehand arranged in four corners of each of opposite end faces of the honeycomb segment and/or the center of each side of an outer peripheral portion of each of the opposite end faces of the honeycomb segment, and the solid cells are integrated with the honeycomb segment.

1. A honeycomb structure comprising:
 a bonded honeycomb segment article in which a plurality of honeycomb segments are integrally bonded on mutual bonding surfaces thereof via bonding material layers; and 
 an outer peripheral coating layer which covers an outer peripheral surface of the bonded honeycomb segment article, 
 the honeycomb structure having a structure in which a plurality of cells constituting fluid channels are arranged in parallel with one another in a central axis direction, 
 wherein in each of the honeycomb segments, solid cells are beforehand arranged in four corners of each of opposite end faces of the honeycomb segment and/or the center of each side of an outer peripheral portion of each of the opposite end faces of the honeycomb segment, and the solid cells are integrated with the honeycomb segment. 
 
   
   
     2. The honeycomb structure according to  claim 1 , wherein the mutually opposite end faces in the adjacent cells of each honeycomb segment are plugged with a filling material. 
   
   
     3. A honeycomb structure comprising: a bonded honeycomb segment article in which a plurality of honeycomb segments are integrally bonded on mutual bonding surfaces thereof via bonding material layers; and an outer peripheral coating layer which covers an outer peripheral surface of the bonded honeycomb segment article, the honeycomb structure having a structure in which a plurality of cells constituting fluid channels are arranged in parallel with one another in a central axis direction,
 wherein in each of the honeycomb segments, a solid cell is beforehand arranged in the center of each of opposite end faces of the honeycomb segment, and the solid cells are integrated with the honeycomb segment. 
 
   
   
     4. The honeycomb structure according to  claim 3 , wherein the mutually opposite end faces in the adjacent cells of each honeycomb segment are plugged with a filling material. 
   
   
     5. The honeycomb structure according to  claim 1 , wherein a total number of the solid cells in a section of the honeycomb segment perpendicular to an axial direction is 0.1 to 10% of a total number of the cells including the solid cells in the section of the honeycomb segment perpendicular to the axial direction. 
   
   
     6. The honeycomb structure according to  claim 3 , wherein a total number of the solid cells in a section of the honeycomb segment perpendicular to an axial direction is 0.1 to 10% of a total number of the cells including the solid cells in the section of the honeycomb segment perpendicular to the axial direction. 
   
   
     7. The honeycomb structure according to  claim 1 , wherein the solid cells are made of the same material as the honeycomb segments. 
   
   
     8. The honeycomb structure according to  claim 3 , wherein the solid cells are made of the same material as the honeycomb segments.